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DC Field | Value | Language |
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dc.contributor.author | Mlambo, Victor. | en_US |
dc.date.accessioned | 2022-03-18T09:25:14Z | - |
dc.date.available | 2022-03-18T09:25:14Z | - |
dc.date.issued | 2021 | - |
dc.identifier.uri | https://openscholar.ump.ac.za/handle/20.500.12714/485 | - |
dc.description | Please note that only UMP researchers are shown in the metadata. To access the co-authors, please view the full text. | en_US |
dc.description.abstract | Paspalum atratum is a tropical grass with potential to contribute to forage availability in areas dominated by waterlogged acidic soils. However, little is known of the interactive effect of N fertilization and stage of harvest on its nutritive value. Therefore, the objectives of this study were to evaluate the interactive effects of N fertilization and harvesting stage on herbage characteristics and nutritive value of P. atratum (Cv. Ubon) and to determine the optimum N fertilization rate at each stage of regrowth. P. atratum seedlings were planted in 18,631-cm3 plastic pots containing growth media amended with 0, 25, 50, and 75 kg N/ha. Forage was harvested after 6- and 12-weeks regrowth. Nitrogen fertilizer had a significant effect (p < 0.05) on herbage yield, sward height, crude protein yield, crude protein concentration, and 12- and 24-h in vitro ruminal organic matter digestibility (IVOMD). P. atratum fertilized with 50 kg N/ha produced the highest dry matter yield (1,133 kg DM/ha) at 12-week regrowth. Crude protein (CP) was highest (133 g/kg DM) in 6-week regrowth forage that received 50 kg N/ha. IVOMD at 12 and 24 h of incubation was highest in 6-week regrowth forage amended with 0 and 50 kg N/ha, respectively. Herbage characteristics and nutritive value of P. atratum showed a quadratic response to N fertilization at both regrowth stages. Response surface optimization indicated that N fertilizer application rates of 56.0 and 52.3 kg N/ha maximized P. atratum herbage yield, CP content, and 12-h IVOMD at 6- and 12-week regrowth, respectively. It was, therefore, concluded that the herbage yield and nutritive value of 6- and 12-week regrowth P. atratum is optimized with N fertilizer rates of 56.0 and 52.3 kg N/ha, respectively. | en_US |
dc.language.iso | en | en_US |
dc.publisher | Wiley | en_US |
dc.relation.ispartof | Grassland Science | en_US |
dc.subject | Herbage yield. | en_US |
dc.subject | Nitrogen fertilization. | en_US |
dc.subject | Nutritive value. | en_US |
dc.subject | Paspalum atratum. | en_US |
dc.subject | Stage of maturity. | en_US |
dc.title | Interactive effects of growth stage and nitrogen fertilization on herbage characteristics and nutritive value of Paspalum atratum. | en_US |
dc.type | journal article | en_US |
dc.identifier.doi | 10.1111/grs.12348 | - |
dc.contributor.affiliation | School of Agricultural Sciences | en_US |
dc.relation.issn | 1744-6961 | en_US |
dc.description.startpage | 1 | en_US |
dc.description.endpage | 10 | en_US |
item.openairecristype | http://purl.org/coar/resource_type/c_6501 | - |
item.cerifentitytype | Publications | - |
item.grantfulltext | embargo_20500101 | - |
item.fulltext | With Fulltext | - |
item.languageiso639-1 | en | - |
item.openairetype | journal article | - |
Appears in Collections: | Journal articles |
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File | Description | Size | Format | |
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Interactive-effects-of-growth-stage-and-nitrogen-fertilization-on-herbage-characteristics-and-nutritive-value.pdf Until 2050-01-01 | Published version | 1.71 MB | Adobe PDF | View/Open Request a copy |
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